booster box bundle Pokemon TCG Scarlet & Violet 10.5 White Flare Set : Toys & Games From fluffy and fiery to freezing and fanciful Platinum Protectors for Pokemon Booster

Yes, they can counter creature spells (they are no different to other spells)

However, if you're able to get one in lightly played (LP) condition or better, you're in for a massive payday, with a sale at around the market price setting the tone

Heres a Commander attempt to do something with the mechanic

Recargador Cohette X OSCURIDAD Nivel 4 [ Dragn / Efecto ] ATK 0 DEF 2100 Si uno o ms monstruos de OSCURIDAD que controlas que fueron Invocados de Modo Especial desde el Deck Extra son destruidos en batalla o por el efecto de una carta: puedes mandar al Cementerio esta carta en tu mano o Campo, y despus seleccionar 1 de esos monstruos destruidos